Atif Khan

Full Stack Engineer @Criteo

Toronto, ON, CA

Built a from-scratch full-stack system to generate realistic spend-event datasets that accelerate testing/validation for advertising budget and billing workflows.• Designed a.NET 8/ASP.NET Core API + service with SQL + S3-compatible storage to create reproducible scenarios (dev/test velocity up ~90%)• Implemented resilient storage (SigV4 + retries) – 100% upload success; eliminated startup auth issues• Added health/readiness probes + structured logging → post-deploy incidents down ~40%• Drove quality with NUnit/Moq + Cypress; coverage to ~78%(+33pp) and E2E flakiness down ~60%• Shared outcomes/roadmap at ShowcaseTech.NET 8, ASP.NET Core, C#, SQL Server (stored procs), S3-compatible object storage, NUnit, Moq, Cypress, Swagger/OpenAPI, Git, CI/CD, Grafana/metricsKeywords: backend, API design, distributed systems, observability, reliability, CI/CD, testing strategy

University of Toronto

Bachelor of Science - BS, Computer and Information Sciences, General